A new edge or gap
If your tongue or floss finds a sharp spot that was not there before, part of the filling or the enamel next to it may have broken. Note when it began. A small, early defect can sometimes be repaired without replacing everything.
Restorative Dentistry
Metal Filling Replacement in Puslinch
Sometimes the best plan for an old amalgam is to keep watching it. From Puslinch, learn what monitoring involves, which changes to report, and when replacing the filling becomes the better choice.
Watching versus replacingAsk whether to watch or replace
Waiting can be a decision, too.
People often expect an exam to end with a list of things to fix. With old silver fillings, a common and perfectly good outcome is a note in your chart: intact, no decay, review next time. Monitoring is not neglect. It is a deliberate choice to keep a working restoration and the natural tooth around it.
Of course, watching has limits. If a margin opens, decay starts underneath or a cusp begins to crack, replacing the filling becomes the more sensible path. That involves removing the amalgam, assessing the tooth and rebuilding it with a suitable material, ideally before a small problem becomes a large one.
For households in Puslinch, where routine visits are often planned weeks ahead, it helps to know exactly what is being watched and what would prompt an earlier call. Tell us what made you wonder about the filling, and bring any past X-rays if you have them.
Changes that end the waiting
These are the signs that tip the balance.
An old filling being dark or dull is expected. The changes below are what move it from monitoring toward treatment.
A tooth that starts reacting
Pain on biting or cold sensitivity that lingers is worth reporting between checkups. The filling might be the cause, though a fracture, the pulp, the gums or an adjacent tooth could be responsible. Diagnosis comes before any decision to replace.
A change of heart about the look
Sometimes the filling is fine but you would simply prefer a tooth-coloured one. That is a choice you can make at any time. We will explain the expected appearance and how much tooth would be removed.
If a metal filling is intact and has no decay beneath it, its age and colour are not reasons to remove it. When replacement is suggested, ask what has changed since it was last reviewed.
When replacing wins out
Act early, and the repair can stay small.
Once monitoring reveals a real problem, replacing the filling sooner can limit how much tooth is lost. The new restoration should seal the cavity, support chewing and be easy to keep clean, using a material that suits the remaining structure.
A modest cavity might be restored with composite, while a larger repair on a heavily used molar may call for an onlay or crown. You can ask how the recommendation balances acting now versus waiting, as well as strength, appearance and future maintenance.
Patient information: CDA — tooth-coloured filling materials
A specific trigger for treatment
You should know what changed: new decay, a broken filling, a cracked cusp or a cosmetic preference. Knowing the trigger helps you weigh replacement against continued watching.
Comparison with earlier records
Previous X-rays or photos make it easier to see whether something is changing. Ask the dentist to show you the comparison, and explain which material suits the cavity now.
A review schedule that fits
Replaced or not, the tooth still needs a plan. Agree on how often it should be checked and what you should watch for at home, including cleaning access, new sensitivity and any clenching or grinding that adds stress to the restoration.
If treatment is chosen
From watching to restoring, in four steps
You will have room to ask why the advice has changed. Tell us whether discomfort, appearance, fees or uncertainty is your main concern.
Compare and confirm
The dentist examines the filling, the enamel and gums around it, and your bite, comparing with earlier records where possible. New X-rays may be suggested. Ask what has changed and to see the area if you can.
Decide on the next step
You discuss whether to keep monitoring, repair the filling or replace it, along with material, fees and alternatives. If replacement is chosen, the dentist explains that removing old amalgam can uncover more damage than expected.
Replace the filling
Freezing is given, the area kept dry, and the amalgam removed. The tooth is checked for decay and cracks, then restored as planned, or temporarily protected while further treatment is arranged. If something unexpected turns up, the dentist pauses to explain it before going further.
Set the next review
The new filling's shape and your bite are checked before you leave. You will know when the tooth should next be reviewed and what to report in the meantime, including any remaining work.
Settling the new filling
A short adjustment, then back to monitoring.
Aftercare depends on how deep the repair was and which material was placed. Call if eating or cleaning becomes harder than expected.
Let the numbness pass
Wait until full sensation returns before chewing, and take care with hot drinks. If a temporary is in place, follow the specific instructions you were given for that stage.
Mention a bite that feels high
Contact us if the tooth seems to touch first, or chewing stays uncomfortable after a day or two. Avoid testing it on hard foods. Explaining what you feel helps the team decide whether an adjustment visit makes sense.
Keep cleaning carefully
Use fluoride toothpaste and clean between teeth daily. If floss catches or food collects in a new spot, mention it, since those small changes are exactly what monitoring is designed to catch. A quick note of the date helps when you next speak with us.
Puslinch questions about monitoring(905) 876-4488
What watching an old filling really means
Monitoring is an active plan, not a shrug. These answers explain what it involves and when it changes.
What exactly does monitoring a filling involve?
At each checkup, the dentist looks at the filling’s edges, the enamel around it and any changes in symptoms. X-rays may be taken at intervals to look for decay beneath or between teeth. Records allow changes to be compared over time.
How often should an old filling be X-rayed?
It depends on your decay risk, history and symptoms. Some people need bitewing X-rays more often than others. The dentist will suggest an interval that suits you and explain why. If a filling is already being watched closely, imaging may be timed to compare the same area against earlier pictures.
What changes should I report between checkups?
Call if you notice a new sharp edge, floss catching or shredding, food trapping, pain on biting, sensitivity that lingers, or a piece of tooth or filling breaking off. Swelling or severe pain needs a call right away.
Can decay under a filling be seen without removing it?
Sometimes. X-rays can show decay beneath or beside a filling, and an exam can reveal gaps at the margins. Small areas may not be visible until the filling is removed, which is why the dentist explains the possibility of surprises.
Is there a point where waiting becomes risky?
Yes. Once decay or a crack is present, it can grow and may lead to a larger repair, a crown or nerve treatment. The dentist will tell you when monitoring is no longer the safest option for that tooth, and what the likely consequences of further delay would be, so the timing remains your informed choice.
Is monitoring amalgam consistent with health guidance?
The FDA’s guidance is to leave amalgam fillings that are in good condition alone unless there is decay or another dental reason. Removing them takes sound tooth and can briefly increase exposure to mercury vapour. Raise specific health concerns with your dentist or physician.
Patient information: FDA — decisions about existing amalgam fillings
Puslinch to Bronte Street
Find out whether to wait or act.
Arrange an appointment at our Milton practice on Bronte Street to review an old filling, a change you have noticed or a cosmetic wish. We will explain the findings and whether monitoring or treatment makes more sense.
Phone us for severe pain or swelling. Online requests are for non-urgent appointments and questions.
Visit Milton Dental ClinicUnit 1, 342 Bronte St. S, Milton, ON L9T 5B7Get directions
Clinic hours
- Monday–Thursday
- 11am–7pm
- Friday–Sunday
- By appointment only
Areas we serve
- Milton
- Oakville
- Mississauga
- Georgetown
- Halton Hills
- Acton
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